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Discussion History

System BMS Master

Assembly

Top-level battery controller estimating state of charge and health and arbitrating charge and discharge limits. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

System BMS Master parts and their functions

5 top-level parts · 215 parts in total · full bill of materials below
System BMS Master parts diagram: 1 bare PCB, 2 microcontroller, 3 isolated CAN transceiver, 4 SMD passive (R/C/L), 5 connector. 215 parts in 5 assemblies.
System BMS Master parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Bare PCB Master controller board
2 Microcontroller Redundant supervisory microcontrollers
3 Isolated CAN Transceiver Isolated CAN links to rack controllers and EMS
4 SMD Passive (R/C/L) 200× Passive components
5 Connector Field wiring connectors

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

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Bill of materials for System BMS Master

5 top-level lines · 5 rows shown · 215 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Bare PCB pcb-bare 1 · part
2 Microcontroller mcu 2 · part
3 Isolated CAN Transceiver battery-energy-storage-container-can-iso 4 · part
4 SMD Passive (R/C/L) smd-passives 200× 200 · part
5 Connector connector 8 · part

Where the system BMS master is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Sourcing: possible vendors

Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$500. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳CATL
catl.com ↗
Ningde, CN Li-ion cell & pack maker 5,000 cells 8–12 wks
🇨🇳EVE Energy
evebattery.com ↗
Huizhou, CN Li-ion cell maker 5,000 cells 8–12 wks
🇮🇳Amara Raja
amararaja.com ↗
Tirupati, IN Batteries & energy 5,000 cells 8–12 wks
🇸🇬Durapower
durapowergroup.com ↗
Singapore Li-ion battery systems 5,000 cells 8–12 wks
🇨🇳BYD
byd.com ↗
Shenzhen, CN EV & battery manufacturer 5,000 cells 8–12 wks